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10/13/04 07:50
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#79250 - Need 5V for Ref. ADC0808
hi,
I need stable 5v, to give reference, for ADC0808
so in my board i have to provide another 9v to receive 5v source, and i cant give existing vcc as reference to ADC becoz that Vcc may little varies depending on the load on it,
so i thought that instead of taking 9v from external source, i wish to take from MAX232 , is it ok
and any problems while taking voltage from here?
and after taking 9 or 10v MAX232 i am driving 741 with a zenor and preset circuit Iam getting 5v at output of 741 opamp
please help me in this regard


PADMANABHAM

List of 22 messages in thread
TopicAuthorDate
Need 5V for Ref. ADC0808            01/01/70 00:00      
   RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
   RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
   RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
   RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
      RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
         RE: Need 5V, Erik, Kiran            01/01/70 00:00      
             RE: Need 5V, Erik, Kiran => Kai            01/01/70 00:00      
               RE: RE: Need 5V, Erik, Kiran => Kai            01/01/70 00:00      
   Getting low voltage reference.            01/01/70 00:00      
      RE: Getting low voltage reference.            01/01/70 00:00      
      RE: Getting low voltage reference.            01/01/70 00:00      
   RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
      RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
      RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
         RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
      LM50 is terribly unprecise!            01/01/70 00:00      
         RE: LM50 is terribly unprecise!            01/01/70 00:00      
            KTY11-5 could be used            01/01/70 00:00      
   RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
      RE: Need 5V for Ref. ADC0808            01/01/70 00:00      
         RE: Need 5V for Ref. ADC0808            01/01/70 00:00      

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